Cream ripener and pasteurizer



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May 15, 1923.

C. J. WESTERGAARD CREAM RIPENER AND PASTEURIZER Filed June 30 1921 2 Sheets-Sheet l l/v VEN ran cwi/ di wes rm www, 2 ./rro/Yfy Patented May l5, 1923,

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Application filed June 30, 1321. Serial No. 4S`189.

To all whom 'it may concern.:

Be it known 'thatL CARL J. lVnsrnRfmAnD, a subject of theling of Denmark (but has taken out first papers to become acitizen of the United States), residing at Minneapolis, in the county of Hennepin `and State of Minnesota, have invented certain new and useful Improvements in Cream Ripeners and Pasteurizers; and l do hereby declare the following to be a full, clear, and exact de` scription of the invention, such as will. enable others vskilled in the art to which it appertains to make and use thesame.

This invention relates to a cream ripener or pasteurizer, such as is commonly used in creameries and dairies.

It is an object of this invent-ion to provide such a machine of simple and compact form which will not require a great deal of floor space and yet which will be eiiicient in operation.

It is a yfurther object of the invention to provide such a device comprising an upright cylindrical tank in which is mounted a rotating coil, the convolutions of which are conformed indiameter to the cross section of the tank.

Thesev and other objects and advantages of the invention will be fully set forth in the following description made in connection withv the accompanying drawings in which like reference characters refer to the same parts throughout the different views, and in which- A Fig. 1 is a plan view of the device, the cylindrical vessel being shown in section;

Fig. 2 is a view in side elevation of the device; and s Fig. 3 is a sectional view on an enlarged scale of one of the bearings in the tank.

Referring to the drawings, the device comprises an upright cylindrical tank or vessel 1, the height of which is slightly greater than its diameter. rlhis vessel is supported upon a bi-conical base 1a having a continuous periphery and is also provided at its topwith aremovable cover 2.

Disposed at opposite sides of the tank substantially midway of its height are hollow bearing members 3 suit-ably secured toand extending through the walls thereof. A

pipe or conduit 4 extends diametrically` through the tank and is journaled in the bearing members 3, said bearing members `being formed on their inner sides as stufling bones and provided with the usual stuiiing glands tor form uid-tightbearings "The member 4 yis made in sections threaded together ar jacent to a bearing 3 t'o'enable the partsto be easily assembled. A sleeve 5 is secured to one end of the pipe 4,0utside of the vessel 1 and a pipe connection 6 extends 'through this sleeve into the'pipe 4. At the other end of the ypipe 4 a plug or filling sleeve 7 is secured and a pipe connection 8 leads therethrough into the pipe 4, and suitable packing is placed in enlarged recesses in the ends of pipe 4 so that steam or fluid cannot escape therefrom around the pipes 6 and 8. The pipe 4 is mounted for rotation zin the bearing members 3 and a pulley `9 is secured to the sleeve 5 and is adapted to be driven from `any suitable source of power tov turn the same.k A coiled pipe member 10 'is disposed in the tank 1 about the pipe 4,v and' has its ends extending into and secured to said pipe inthe manner shown in Fig. 3.

. As'shown therein.y the ends ofthe coil are iitted into apertures in the pipe "and said ends are cut on a long bevel so that the open-1 ing into the coil is substantially the width of the opening in thepipe. plug member 4a is placed in the pipe 4 immediately inside of each'end of the coil 10 and completelyv fills the pipe so that fluid therein cannot pass beyond the same; As shown in Fig. 1, the convolutions of the coil 10 vary in diameter andare conformed to the circular shape of the tank 1, the convolutions at the center being the largest and the convolutions de-` the coil. f

The pipe 6 is suitably connected to pipes 11, suitable valves being placed in the latter and the pipes l1v extending into the tanks 12 and 13. rl`he pipe 8 is connected to cross pipes 14, which, in turn, are connected to the 9o creasing in diameter toward each end of tanks 12 and 13 and a pipe 15 also is connected to the pipe 8 and extends into a tank 16, the tanks 12 and 16 being connected by a pipe 17. Suitable valves are placed in the pipes 14,15 and 17 as well as in steam pipe 18 to variably control the circulation of fluid through the vessel 1. l

The operation of the device is as follows: The cream to be treated will be charged into the tank 1 through the top thereof. If

thercrearn `is' to'be heated, steam will `be turned into the pipe 18 from some suitable source of steam supply and the tank 13 will preferably be filledor partially illed with water. The steam passing into the tank 13 will heat the water therein and this Water will pass through pipes 11 and 6 into the pipe a and into coil 10. l'ower being` applied to the pulley 9 to turn the coil 10, the coil will, by its helical formation, force the water therethrough and the water will thus pass out again through pipes 4; and 8 and through pipe 14- into the tank 13. A circulation of the hot water of the desired ternperature will thus be maintained through the coill() and the cream in vessel 1 will be treated as desired. T he steam is passed through the Water in tank 13 so that too hot steam will not enter coil 10 and burn the cream thereon.

If it is desired to cool thecream, a similar circulation of brine which may be supplied in tank 1G will be effected. The brine will pass through pipes 17 and 11 which will be connected through the tank 12 and thence through pipe G into the coil 10 and back into the tank 16 through pipes S and 15. The brine will be cooled by the usual apparatus used in ice making or ,re'lfrigeratingj plants.

ln small plants where no freezing apparatus is used or where the same is not always available another tanklQ is supplied with a cooling` tank which maj)7 be packed with ice andy thus contain cool liquid for cooling the material. Such a tank is also useful in connection with a freezing apparatus in case the latter becomes inoperative. `When the tank 12 is thus used, the pipes 11 and 17 are not connected therethrough but the pipes 11 and 14 merely connect with the inside of the tank. n

From the above description it is seen that applicant has provided a simple and compact cream ripener and one by which a large .amount of material may be effectively ous changes may be inade in the forni, dc-

tails and arrangement of the device without departingl romthe scope ot applicants invention, which, generally stated, consists in the matter shown and described and set fort-h in the appended claim.

lhat is claimed is:

A cream ripener and pastenrizer having in combination base having` a circular top, a single vertical cylindrical vessel secured to said base and ot substantially the saine diameter as the top thereof, bearings at opposite sides ot said vessel extending through the walls of the same, a pipe rotatably mounted in said bearings and a coil secured to said pipe and communicating therewith at its ends7 the longitudinal axis of the coil thus being normal to the axis of said vessel, said coil having` its convolutions of dillierent diameter conforming to the curvature oit said vessel. y y

ln testimony whereof l aiiix my signature.

CARL J. VESTERGAARD. 

